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Installation and Operation Manual
Provides Pump rotation,
auxiliary Pump activation, and
Pump Failure alarm Control
This Heat-Timer control is strictly an operating control; it should
never be used as a primary limit or safety control. all equipment
must have its own certified limit and safety controls required by local
codes. The installer must verify proper operation and correct any
safety problems prior to the installation of this Heat-Timer control.
WarnIng
PLL
Pump-Lead-Lag
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Summary of Contents for heat-timer PLL
- Page 1 Pump Failure alarm Control Pump-Lead-Lag WarnIng This Heat-Timer control is strictly an operating control; it should never be used as a primary limit or safety control. all equipment must have its own certified limit and safety controls required by local codes.
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Page 2: Table Of Contents
2-Pump 1-Call 1-Flow Piping 2-Pump 1-Call 2-Flow Wiring 2-Pump 1-Call 2-Flow Piping 3-Pump 1-Call 1-Flow Wiring 3-Pump 1-Call 1-Flow Piping 3-Pump 2-Call 2-Flow Wiring 3-Pump 2-Call 2-Flow Piping 3-Pump 3-Call 3-Flow Wiring 3-Pump 3-Call 3-Flow Piping Warranty Specification PLL Installation and Operation Manual... -
Page 3: Pll Layout
10 11 12 13 14 15 16 17 18 19 Alarm output relays Pump Flow Inputs 120 VAC do not source power. (Dry-Contact) Power Pump and Valve output relays Pump Call Inputs source 120 VAC power. (Dry-Contact) PLL Installation and Operation Manual... -
Page 4: Overview
• For local indication, it also has an LED for each of the alarm outputs. alarming on no-Flow • If a pump fails to provide proof-of-flow for 30 seconds, by shorting the Flow input terminals, the PLL will turn that pump’s alarm output on and blink its alarm LED. -
Page 5: 1-Call, 2-Flow (2-Pump)
Pump 2 fails and goes into alarm. See "Valve Output Wiring" on page 9.. • If a pump fails, the PLL will turn it off and will turn on its Alarm output, its Valve output, and the Auxiliary pump / Pump 3 (P3) output. -
Page 6: Pump Delay
It proves very beneficial to wet rotor pumps as it helps lubricate their seals. • When this feature is enabled, The PLL exercises any pump that did not run for a week. The exercise period is 10 seconds. InsTaLLaTIOn sTePs Follow these steps to make sure that all aspects of the system installation are done: 1. -
Page 7: Installation
• Select a location near the equipment to be controlled. the responsibility of the installer • The surface should be flat and sufficiently wide and strong to hold the PLL. to verify that all the safety and • Keep the control away from extreme heat, cold, or humidity. Ambient operating limits required by code are temperature is from 20 to 120°F. -
Page 8: Wiring
24 and 25) VALVE 2 POWER Call RESET • Depending on the mode selected, the PLL may require the use of one, two, or three Input OUTPUT RATINGS: 2A RESISTIVE, 120VAC Pump Call inputs. See "Dip Switches" on page 10. -
Page 9: Pump Output Wiring
PUMP 1 mode selected. 6 7 8 9 10 11 12 13 • Each of the PLL pump outputs sources power to operate a pump up to ¼ HP (120 PUMP 2 VAC, 60Hz). PUMP 3 • If the pump requires more power than what the PLL can output, use a pump starter or an external higher output power relay. -
Page 10: Dip Switches
ALARM 1 RESET DIP sWITCHes ALARM 2 80VA, 120VAC ALARM The PLL control is designed to operate pumps in multiple modes. Each mode can be activated by adjusting the dip switches. POWER ALARM 1 ALARM 3 UMP LEAD-LAG EAD-LAG PUMP LEAD-LAG... -
Page 11: Leds
Output relays do not Turn On To test a valve output, the PLL dip switches must be set to 3- Pump 2-Call 2-Flow mode. See "Dip Switches" on page 10. Then, initiate a call for the respective pump (C) and wait 30 seconds for the alarm output and valve output to be activated. Then test for continuity across the output terminals using a continuity meter. -
Page 12: Wiring And Piping Diagrams
Inputs are dry-contact. no voltage should be placed across Dip4 - 6 = Choose rotation option the input terminals. Ouput sourcing terminals provide 120 vaC. see output rating prior to connecting equipment to avoid output damage. PLL Installation and Operation Manual... -
Page 13: Pump 1-Call 1-Flow Piping
Switch Pump2 aLerT Heat-Timer is aware that each installation is unique. Thus, Heat-Timer is not responsible for any installation related to any electrical or plumbing diagram generated by Heat-Timer. The provided illustrations are to demonstrate Heat-Timer’s control operating concept only. -
Page 14: Pump 1-Call 2-Flow Wiring
Inputs are dry-contact. no voltage should be placed across Dip4 - 6 = Choose rotation option the input terminals. Ouput sourcing terminals provide 120 vaC. see output rating prior to connecting equipment to avoid output damage. PLL Installation and Operation Manual... -
Page 15: Pump 1-Call 2-Flow Piping
Heating Source Pump2 aLerT Heat-Timer is aware that each installation is unique. Thus, Heat-Timer is not responsible for any installation related to any electrical or plumbing diagram generated by Heat-Timer. The provided illustrations are to demonstrate Heat-Timer’s control operating concept only. -
Page 16: Pump 1-Call 1-Flow Wiring
Inputs are dry-contact. no voltage should be placed across Dip3 = On (1-Call + 1-Flow Mode) the input terminals. Dip4 - 6 = Choose rotation option Ouput sourcing terminals provide 120 vaC. see output rating prior to connecting equipment to avoid output damage. PLL Installation and Operation Manual... -
Page 17: Pump 1-Call 1-Flow Piping
Pump2 Pump3 aLerT Heat-Timer is aware that each installation is unique. Thus, Heat-Timer is not responsible for any installation related to any electrical or plumbing diagram generated by Heat-Timer. The provided illustrations are to demonstrate Heat-Timer’s control operating concept only. -
Page 18: Pump 2-Call 2-Flow Wiring
Input Input Pump 1 ¼ HP Call Input Alarm Input Pump 2 ¼ HP Aux Pump (Pump 3) ¼ HP DIP switch settings: Dip1 = OFF (3-Pump Mode) Dip2 = OFF (2-Call + 2-Flow Mode) PLL Installation and Operation Manual... -
Page 19: Pump 2-Call 2-Flow Piping
Aux Pump 3 aLerT Heat-Timer is aware that each installation is unique. Thus, Heat-Timer is not responsible for any installation related to any electrical or plumbing diagram generated by Heat-Timer. The provided illustrations are to demonstrate Heat-Timer’s control operating concept only. -
Page 20: Pump 3-Call 3-Flow Wiring
DIP switch settings: Call Input Dip1 = OFF (3-Pump Mode) Dip2 = On (3-Call + 3-Flow Mode) Input mp 3 Flow 1 Dip3 = On Dip4 = OFF (6 Minute Delay) or Dip4=On (no Delay) Input PLL Installation and Operation Manual... -
Page 21: Pump 3-Call 3-Flow Piping
Pump 3 aLerT Heat-Timer is aware that each installation is unique. Thus, Heat-Timer is not responsible for any installation related to any electrical or plumbing diagram generated by Heat-Timer. The provided illustrations are to demonstrate Heat-Timer’s control operating concept only. -
Page 22: Warranty
WARRANTIES AND LIMITATIONS OF LIABILITY AND DAMAGE: Heat-Timer Corporation warrants that it will replace, or at its option, repair any Heat-Timer Corporation manufactured product or part thereof which is found to be defective in material workmanship within one year from the date of installation only if the warranty registration has been properly filled out and returned within 30 days of the date of installation. -
Page 23: Specification
Weight: ............2 pounds PLL Installation and Operation Manual... - Page 24 20 New Dutch Lane, Fairfield, NJ 07004 Ph: (973) 575-4004 • Fax: (973) 575-4052 http://www heat-timer com...
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